Entomological Works for Sale. 



COLEOPTERA. 



Classification of the Coleoptera of North America, by Drs. 

 LeConte and Horn, 567 pp. (Smithsonian Institution) . . $2.50 



List of the Coleoptera of America, North of Mexico, by 

 Samuel Henshaw, 1885, 166 pp. . . . . . .1.25 



First Supplement to the same, 1887, . . . . . .25 



Second Supplement to the same, 1889, . . . . .25 



* Synopsis of the Silphidtz of the United States, with refer- 

 ence to the genera of other countries, by G. H. Horn, M.D., 



104 pp. 3 plates, 1880 . . . . . . . .1.25 



* On the genera of Carabida;, with special reference to the 

 fauna of Boreal America, by G. H. Horn, M. D., 106 pp. 8 

 plates, 1 88 1 . . . . . . . . .1.25 



* Monograph of the species of Chrysobothris inhabiting the 

 United States, by G. H. Horn, M. D., 60 pp., 6 plates, 1886 . i.oo 



* Monograph of the Aphodiini of the United States, by G. 



H. Horn, M. D., no pp. 1887 ... . 1.25 



* Revision of the species of Lachnosterna of America N. 



of Mexico, by G. H. Horn, M. D., 88 pp. i pi. 1887 .1.25 



* Synopsis of the Halticini of Boreal America, by G. H. 

 Horn, M. D., 158 pp. 3 plates, 1889 ..... 1.75 



LEPIDOPTERA. 



|c Revised Catalogue of the Diurnal Lepidoptera of America 

 North of Mexico, by W. H. Edwards, 96 pp. 1884 . . . i.oo 



The Butterflies of eastern U. S. for use of classes in Zoology 

 and private students, by G. H. French; illustrated, i2mo. cloth 2.00 



* Monograph of the Spkingidtz of America North of 

 Mexico, by John B. Smith, 194 pp. 10 plates, 1888 . . . 2.00 



HYMENOPTERA. 



* On the Tenthredinidtz and Uroceridcs of N. America (a 

 descriptive catalogue of all the genera and species known to date) 



by Edw. Norton and E. T. Cresson, 290 pp. 1880 . . .1.50 

 !< Monograph of the Mutillidce of North America, by Chas. 



A. Blake, 108 pp. 1886 1.25 



Synopsis of the Families and genera of the Hymenoptera 



of America North of Mexico, by E. T. Cresson. Parts i and 2 



complete, 350 pp. 1887 . . . . . . . .3.00 



Part i. Families and Genera, 154 pp. . . . $1.50 



Part 2. Catal. of Species and Bibliography, 196 pp. 1.50 



Proceedings of the Entomological Society of Philadelphia. 

 A few copies left of vols. 2-6 (vol. i out of print) per set . . 30.00 



Transactions of the American Entomological Society, vol. 

 xvii, now publishing. Subscription price per volume . .4.00 



Our price lists, containing the titles of a large number of separate papers 

 on the different orders (chiefly published in the "Proceedings" and "Trans- 

 actions"), can be had on application. Address, 



E. X. CRESSOX, Treasurer, 



P. O. Box 1577, Philadelphia, Pa. 



k These papers were pubished in the " Transactions" of the Am. Ent. Soc. 



